Improvement in radiators



L. BURNELL Radiator.

No. 38,809. `Patented June'9. Y1863.

UNITED STATES PATENT GITICE LEvI BUENELL, 0E MILWAUKEE, w'IscoNsIN.

IMPPLOVEMEN'II IN RADIATORS.

Specification forming part of Letters Patent No. 38,809, dated June 9,1863.

.To all whom it may concern.-

Be it known that I, LEVI BURNELL, of Milwaukee, in the county ofMilwaukee and State of Wisconsin, have invented a new and ImprovedHeatRadiating Apparatus or Device to be Applied to the SmokePipes ofStoves, Ranges, Sto.; and I do hereby declare that the following is afull, clear, and exact description of the same, reference being had tothe accompanying drawings, making a part of this speciiication, inwhich- Y Figure lis alongitudinal section of a stovepipe with myinvention applied to it; Fig. 2, a transverse section of the same, takenin the line a: x, Fig. 1.

Similar letters of reference indicate corresponding parts in the twogures.

To enable those skilled in the art to fully understand and construct myinvention, I will proceed to describe it.

A represents an enlarged section or joint of a stovepipe; and B Brepresent the ends of the joints of the stove-pipe, to which theenlarged section A is attached. Within this enlarged section A there issecured a cylinder, C, sufficiently less in diameter than A to admit ofan annular space, D, of proper capacity between A and C for the productsof combustion to pass through. (See Fig. 1.) The cylinder C may behollow and constructed of sheet metal closed at both ends, and the lowerend, a, may be of conical form. The upper end may be either flat or ofconical form, as desired. The cylinder may be also solid if desired, andconstructed of any proper non-combustible material.

In the upper part of A there is placed a disk register or damper, E,constructed of a plate, b, which is permanently secured in A at rightangles to the sides thereof, said plates having a number of radialslots, c, made in it at equal distances apart and of equal area. On thisplate b there is pivotcd centrally a circular disk, d, the diameter ofwhich is nearly equal to b. This disk d has also radial slots e made init corresponding to the slots c in b, and to the disk d there isattached a rod, f, which extends through the side of A and serves as ahandle for turning or adjusting d. (See Fig. 2.) This disk register ordamper is a short distance above the cylinder C, as shown in Fig. l.

VFromvthe above description it will be seen that the products ofcombustion,in passing through the annular passage or space D, will al1be brought in contact with the side of A, and this will greatly favorthe radiation of heat from A, as the products of combustion will, bymeans of the cylinder C, be .spread 'over a comparatively large area7Whereas, without said cylinder, considerable heat would pass upcentrally through A and escape radiation into the room or apartment. Thecylinder C, while thus serving to divert the products of combustion in Aand bring them in contact with the inner side thereof, also serves toabsorb a certain degree of heat and retain the same so long as thetemperature of the products of combustion in the passage or space Dremains equal to the temperature of C; but when the temperature of theproducts of combustion in D becomes lower than'the temperature of C,owin g to the reduction of the tire in the heater, 'or from othercauses, the cylinder C will give out or radiate its heat in space D, andsaid heat will be again radiated from A. Thus the radiation of heat fromA will be rendered comparatively uniform, as all fluctuations in theintensity of the fire is compensated for.

By means of the disk register or damper E the passage of the products ofcombustion through the space D may be regulated as desired. n

It is designed to have the combined areas of the slots c c in the plateb, and also ofthe disk d, equal to, or at least as great as, the area ofthe space D, and hence, when the register or damper is fully opened,anunobstructed passage is allowed the products of combustionv through A,and by adjusting the disk d the draft may be checked as desired.

I would remark that the cylinder G, if made hollow, may be used as ahot-water tank or reservoir, and supplied with a cock or faucet at itslower end, and with a funnel orinduction pipe at its upper end. Thecylinder, therefore, would be made to perform a double function andanswer good purpose `in either register E with each other, and witlitile pipe capacityequally so as if designed pera-tely A and space D, inthe manner herein shown for each. and described.

Having thus described my invention, I LEVI BURNELL. cla-im and desire tosecure by Letters Pat- Witnesses: ent- SAML. L. BURNELL,

E. L. J ONES.

The arrangement of the dcector C andl

